Abstract
This study examined the influence of source monitoring instruction to following source monitoring test by using post-event information effect paradigm. First, a series of slides was presented. Second, post-event information was given with source monitoring instruction. In instruction, participants were told that there are two sources, that some items were presented only one source, and that they judge the source of those items. Finally, source monitoring test was conducted. As a result, correct response to misinformation item and new item was increased in instruction condition. New response had increased overall on this condition. Therefore, following analysis that focused on item responded to old was conducted. This analysis showed that correct response to slide item was also increased. These results suggest that when source monitoring instruction was given participants carefully judge, and they come to do more certain judgment.
